SU926305A1

SU926305A1 - Support for conjugation of extraction drifts

Info

Publication number: SU926305A1
Application number: SU802923387A
Authority: SU
Inventors: Геннадий Анатольевич Симанович
Original assignee: Днепропетровский Ордена Трудового Красного Знамени Горный Институт Им.Артема
Priority date: 1980-05-13
Filing date: 1980-05-13
Publication date: 1982-05-07

Description

Изобретение относитс к горному делу, а именно к конструкци м крепи горных выработок.The invention relates to mining, namely to support structures for mine workings.

Известна крепь сопр жени выемочных штреков с лавами, предназначенна дл обеспечени устойчивого состо ни сопр жений. Така крепь состоит из рамной и штанговой крепей 1.The known lining of the excavation drifts with lavas, designed to ensure a stable state of the joints. Such support consists of frame and rod supports 1.

В такой конструкции рамы не св заны со штангами в единую грузонесущую конструкцию, поскольку они выполн ют разные задачи: рамна крепь поддерживает породы кровли штрека и ограничивает смещени блоков, штангова - укрепл ет породы сопр жени . Отсутствие непосредственных силовых св зей между двум видами крепи снижа т устойчивость сопр жени лавы со штоком.In this design, the frames are not connected to the rods in a single load-carrying structure, since they perform different tasks: the frame support supports the roof of the drift roof and limits the displacement of the blocks, while the rod support strengthens the mating rocks. The absence of direct power connections between the two types of lining reduces the stability of the mating of lava with the rod.

Наиболее близкой по технической сущности к изобретению вл етс крепь сопр жени выемочных штреков, включа рамы податливой крепи, углы податливости с хомутами и анкераГЗ.The closest to the technical essence of the invention is the lining of the coupling of excavation drifts, including the frames of pliable lining, the corners of compliance with the clamps and anchors GZ.

Недостатком такой крепи вл етс отсутствие элементов податливости в св з х между анкерами и рамами, а также неравномерность нагрузки во врем работы отдельных элементов всей конструкции.The disadvantage of this support is the lack of compliance elements in connection between the anchors and frames, as well as the uneven load during the operation of individual elements of the whole structure.

Цель изобретени - распределение усилий в элементах крепи пропорционально их несущей способности. The purpose of the invention is the distribution of forces in the support elements in proportion to their carrying capacity.

Поставленна цель достигаетс тем, что в крепи анкеры соединены между собой и рамами крепи посредством ст жек, при этом свободные концы каждого анкера снабжены фиксатором и охвачены ст жками, которые закреплены в узле податливости одним из хомутов.The goal is achieved by supporting the anchors between each other and the support frames by means of straps, while the free ends of each anchor are provided with a clamp and are covered by straps, which are fixed in the node of compliance by one of the clamps.

На фИг.1 изображена крепь сопр жени выемочного штрека с лавой; на фиг. 2 - разрез А-А на фиг.1; на фиг. 3 - узел податливости; на фиг. 4 15 разрез Б-В на фиг. 3; на фиг.5 и 6 варианты соединени свободных концов анкера со ст жками.Figure 1 shows the lining of the intersection of the excavation drift with lava; in fig. 2 shows a section A-A in FIG. in fig. 3 - yarn knot; in fig. 4 15 section BB in FIG. 3; Figures 5 and 6 show connection options for the free ends of the anchor with tie rods.

Крепь сопр жени выемочных штреков состоит из рам 1, анкеров/2 с фикса20 тором 3, зат жек 4, ст жек 5 и узла податливости(фиг.1-4).The fixture of the interface of the excavation drifts consists of frames 1, anchors / 2 with fixator 3, tack 4, st 5 and a yielding unit (Figures 1-4).

Узел податливости состоит из полукольца 6, ограничител 7 и хомута 8. Полукольцо 6 образовано выступающими The knot of compliance consists of half ring 6, limiter 7 and clamp 8. Half ring 6 is formed by protruding

25 за пределы хомута гибкими ст жками 5. Ограничитель 7, фиксирующий величину податливости ст жек 5, может .быть выполнен в различных вариантах, например , при использовании гибких ст жек 25 outside the clamp with flexible straps 5. Limiter 7, which fixes the magnitude of compliance of the straps 5, can be made in various ways, for example, when using flexible straps

Claims

30 of the cable limiter is made in in -. de knot or in the form of a ring loosely or rigidly fixed on the rope (fig. 3 and 4). The connection of the free ends of the anchors to the straps can be carried out by means of a ring (Fig. 5) in the case of tubular anchors fastened with the energy of an explosion, or the nuts of FIG. 6), avalanchevaya on the end of the anchor when using conventional anchors. Work lining is as follows. As displacements of the rocks 10 of conjugation (Fig. 1) increase and deform them into the bottom hole space 11, the tension of the strut 5 increases, caused by the displacement of the end of the anchor 2. When the tension force of the strut 5 exceeds the force of its clamping by means of the clamp 8, slipping of the strap 5 against the collar 8 and the anchor 2 will begin. This leads to a reduction in the load on the lining. When the -, / load decreases to the magnitude of the force, the slip of the tie-rod 5 stops and the load on the lining gradually increases, the cycle of operations on the periodic slipping of the tension knot in the compliance node is repeated until the value of compliance is exhausted, after which the tie-down work in hard mode. The proposed structure ensures the operation of the frames 1 and anchors 2 as a single load-carrying structure ensuring the stable condition of the roof 12 (Fig. 1) of the interface of the bottomhole space 11 with a drift 13. Formula of the invention Support of the interface of excavation drifts, including the frame of flexible support, compliant nodes with whirlpools and anchors, characterized in that, in order to distribute the efforts in the lining elements in proportion to their bearing capacity, the anchors are interconnected with the lining frames by means of struts, while the free end s fiksatgorom anchors are provided and covered: enes tie rods that are fastened in one of the node pliability clamps. Sources of information taken into account in the examination 1.Shirokov A.P. et al. Anchoring support design for various applications. M., Nedra, 1976, pp. 1334-135.

2. Authors certificate of the USSR 658283, cl. E 21 O 11/34, 1978 (prototype).

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